For people that have a massive directory of images (ie 30,000+) and want to quickly delete or remove any images that aren't of a certain orientation type (aka landscape vs portait) with a crap pc

For people that have a massive directory of images (ie 30,000+) and want to quickly delete or remove any images that aren't of a certain orientation type (aka landscape vs portait) with a crap pc

-Make sure all images are in a singular format (such as all jpg or png). Free software I recommend is Bulk Image Converter from sourceforge. You could also just search ".gif" and delete all results. -Number all images numerically (examples: 1.jpg to 50000.jpg) which can be done using the free software Bulk Rename Utility -Pick the correct script for use, they are named accordingly. -Change the number in the script equal to the first image number (ie put 1 for 1.jpg) -Change the number after "-le" to the last image number

1. cd to the location of choice,
2. open nano
3. input script
4. save

Advanced users may notice that you could achieve this without numbering all images and simply using the "for i in *.jpg;" command, but that loads all filenames into a cache. If you have 80,000 images in a single directory, it can cause freezing. Using the numbering method forces the PC to do one line at a time.